I am a new user of SWP 5.5 (Scientific Workplace).
I am writing thesis. For simplicity, I directly used the template of "Boston University ECE" (File-new-thesis-Boston University ECE).
Now I want to reset the default spacing to double spacing. I tried several ways from Internet, but failed, with the error:
! LaTeX Error: Command \setstretch already defined. Or name \end... illegal, see p.192 of the manual.
I really do not know how to solve this problem. Thank you for the help in advance.